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| <h2>About Apache AsterixDB</h2> |
| <p>Apache AsterixDB™ (incubating) is a highly scalable data management system that can store,index, and manage |
| semi-structured data, e.g., much like MongoDB, but it also supports a full-power query language with the expressiveness |
| of SQL (and more). |
| Unlike analytics engines like Hive or Spark, it stores and manages data, so AsterixDB can exploit its knowledge |
| of data partitioning and the availability of indexes to avoid always scanning data set(s) to process queries. Somewhat |
| surprisingly, there is no open source parallel database system (relational or otherwise) available to developers today |
| – AsterixDB aims to fill this need.</p> |
| |
| <h3 id="core-features">Core features</h3> |
| |
| <ul> |
| <li>A NoSQL style data model (ADM) based on extending JSON with object |
| database concepts.</li> |
| <li>An expressive and declarative query language (AQL) for querying |
| semi-structured data.</li> |
| <li>A runtime query execution engine, Hyracks, for partitioned-parallel |
| execution of query plans.</li> |
| <li>Partitioned LSM-based data storage and indexing for efficient |
| ingestion of newly arriving data.</li> |
| <li>Support for querying and indexing external data (e.g., in HDFS) as |
| well as data stored within AsterixDB.</li> |
| <li>A rich set of primitive data types, including support for spatial, |
| temporal, and textual data.</li> |
| <li>Indexing options that include B+ trees, R trees, and inverted |
| keyword index support.</li> |
| <li>Basic transactional (concurrency and recovery) capabilities akin to |
| those of a NoSQL store.</li> |
| </ul> |
| |
| <h3 id="history">History</h3> |
| <p>Prior to being developed at the Apache Software Foundation AsterixDB was co-developed by a team of faculty, staff, and students at UC Irvine and UC Riverside. |
| The project was initiated as a large NSF-sponsored project in 2009, the goal of which was to combine the best ideas from the parallel database world, the then new Hadoop world, and the semi-structured (e.g., XML/JSON) data world in order to create a next-generation BDMS. |
| A first informal open source release was made four years later, in June of 2013, under the Apache Software License 2.0. |
| AsterixDB was accepted into the Apache Incubator and began Incubation as of Febuary of 2015.</p> |
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| <p>Apache AsterixDB is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored |
| by the Apache Incubator. |
| Incubation is required of all newly accepted projects until a further review indicates that the |
| infrastructure, communications, and decision making process have stabilized in a manner consistent with |
| other successful ASF projects. |
| While incubation status is not necessarily a reflection of the completeness or stability of the code, it |
| does indicate that the project has yet to be fully endorsed by the ASF.</p> |
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